FLT CTL Panel Flashcards

1
Q

What does ELAC stand for?

A

Elevator Aileron Computer

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2
Q

How many ELAC’s on the Airbus?

A

2

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3
Q

What are the functions of the ELAC?

A
  • Normal elevator
  • Normal aileron
  • Normal pitch and roll
  • Alternate pitch
  • Direct pitch and roll
  • Abnormal alt
  • Aileron droop
  • Autopilot orders
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4
Q

Under Normal Law, what does ELAC 1 control?

A
  • Primary - Aileron control (roll)
  • Standby - Elevator / Stabilizer control (backs up ELAC 2)
  • Provides 5° aileron droop
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5
Q

Under Normal Law, what does ELAC 2 control?

A
  • Primary - Elevator / Stabilizer (pitch)

* Standby - Aileron control (backs up ELAC 1)

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6
Q

What backs up ELAC 2?

A

ELAC 1 -> SEC 2 -> SEC 1

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7
Q

What does SEC stand for?

A

Spoiler Elevator Computer

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8
Q

How many SEC’s are installed?

A

3

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9
Q

What functions are performed by the SEC’s?

A
  • Normal roll (by controlling the spoilers)
  • Speedbrakes and ground spoilers
  • Alternate pitch (SEC 1 and SEC 2 only)
  • Direct pitch (SEC 1 and SEC 2 only)
  • Direct roll
  • Abnormal attitude.
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10
Q

Under Normal Law, what do the 3 SEC’s control?

A
  • Primary – Spoiler control (roll)

* Standby – Elevator / Stabilizer control (SEC 1 & 2 back up the ELAC’s)

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11
Q

What is the sole purpose of SEC 3?

A

Spoiler control

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12
Q

What does FAC stand for?

A

Flight Augmentation Computer

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13
Q

How many FAC’s are installed?

A

2

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14
Q

What are the functions of the FAC’s?

A
  • Rudder Trim
  • Rudder travel limit
  • Yaw control
  • Flight Envelope Protection – vertical
  • Windshear Protection
  • Low Energy Warning Protection
  • Alpha Floor Protection
  • PFD speed scale
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15
Q

Under Normal Law, what do the FAC’s provide (YAWL)?

A
  • Yaw Control – Damping and turn coordination, rudder limiter, rudder trim)
  • Airspeed Protection Computation (Alpha Prot, high / low limits, maneuvering speed, PFD speed scale)
  • Windshear protection (Reactive windshear)
  • Low Energy Warning Protection (“Speed, speed, speed”)
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16
Q

Is full rudder deflection available during all flight regimes?

A

No. Rudder deflection is limited as a function of airspeed.

17
Q

What is the computer and priority for the Ailerons?

A

ELAC 1 -> ELAC 2

18
Q

What is the computer and priority for the Elevator and Stabilizer?

A

ELAC 2 -> ELAC 1 -> SEC 2 -> SEC 1

19
Q

How are the flight control surfaces controlled and actuated?

A

All surfaces are controlled electrically and actuated hydraulically

20
Q

When is automatic pitch trim available?

A

In flight under Normal law with bank angle less than 33° with or without autopilot engaged

21
Q

If the active elevator actuator fails, what occurs?

A

Control is transferred to the other actuator

22
Q

How is roll control normally achieved?

A

1 aileron and 4 spoilers on each wing

23
Q

If both FAC’s fail, is maximum rudder deflection available?

A

Yes, after slat extension